Documentation

InfluxDB 3 Core

InfluxDB 3 Core internals

Learn about InfluxDB 3 Core internal systems and architecture. Understanding these internals can help with performance optimization, troubleshooting, and advanced integrations.

InfluxDB 3 Core authentication and authorization

InfluxDB 3 Core uses an Attribute-Based Access Control (ABAC) model to manage permissions for authentication (authn) and authorization (authz).

Data durability

Learn how InfluxDB 3 Core ensures data durability through a structured write path that balances performance, persistence, and query efficiency.

Was this page helpful?

Thank you for your feedback!

© 2025 InfluxData, Inc.

What is your InfluxDB 3 Core URL?

Customize your InfluxDB 3 Core URL and we’ll update code examples for you.

Default
Custom

For more information, see InfluxDB Cloud regions or InfluxDB OSS URLs.

Thank you for your feedback!

Let us know what we can do better:

Thank you!

No thanks

The future of Flux

Flux is going into maintenance mode. You can continue using it as you currently are without any changes to your code.

Read more

Now Generally Available

InfluxDB 3 Core and Enterprise

Start fast. Scale faster.

Get the Updates

InfluxDB 3 Core is an open source, high-speed, recent-data engine that collects and processes data in real-time and persists it to local disk or object storage. InfluxDB 3 Enterprise builds on Core’s foundation, adding high availability, read replicas, enhanced security, and data compaction for faster queries and optimized storage. A free tier of InfluxDB 3 Enterprise is available for non-commercial at-home or hobbyist use.

For more information, check out:

Ask AI